On unitarity of tree-level string amplitudes
Abstract Four-particle tree-level scattering amplitudes in string theory are magically consistent with unitarity, reflected in the non-trivial fact that beneath the critical dimension, the residues of the amplitudes on massive poles can be expanded in partial waves with all positive coefficients. Wh...
Principais autores: | , , , |
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Formato: | Artigo |
Idioma: | English |
Publicado em: |
SpringerOpen
2022-02-01
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coleção: | Journal of High Energy Physics |
Assuntos: | |
Acesso em linha: | https://doi.org/10.1007/JHEP02(2022)197 |